The Probability Scale & Simple Events (Year 7)
Free printable UK Year 7 (Key Stage 3) maths worksheet: find simple probabilities as reduced fractions and place them on the 0-1 probability scale.
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Grade 6 · Math worksheet
Name
Date
Math
The Probability Scale & Simple Events
Find each probability as a fraction in its simplest form, and place probabilities on the 0-1 scale.
- 1.A bag contains 3 green counters, 5 blue counters and 3 purple counters. One counter is picked at random. Find P(green), giving your answer as a fraction in its simplest form.
- 2.A bag contains 10 purple counters, 9 yellow counters and 6 green counters. One counter is picked at random. Find P(purple), giving your answer as a fraction in its simplest form.
- 3.A bag contains 2 red counters, 9 yellow counters and 5 purple counters. One counter is picked at random. Find P(red), giving your answer as a fraction in its simplest form.
- 4.A bag contains 5 yellow counters, 10 blue counters and 4 purple counters. One counter is picked at random. Find P(yellow), giving your answer as a fraction in its simplest form.
- 5.The probability that a spinner lands on red is 23. Find the probability that it does NOT land on red.
- 6.The probability that a spinner lands on red is 45. Find the probability that it does NOT land on red.
- 7.The probability that a spinner lands on red is 13. Find the probability that it does NOT land on red.
- 8.A probability is 68. Where does this sit on the 0-1 probability scale: impossible, unlikely, an even chance, likely, or certain?
- 9.A probability is 12. Where does this sit on the 0-1 probability scale: impossible, unlikely, an even chance, likely, or certain?
- 10.A probability is 1010. Where does this sit on the 0-1 probability scale: impossible, unlikely, an even chance, likely, or certain?
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